Electric fitting and the like



Apr 3, 1928. 1,664,759 f A. B. RYPINSKI 'ELECTRIC FITTING AND THE LIKE Filed May 13. 1921 5/2 /3 jm /ff @m 5 --b 7/ 6 9 /4 T-/ /0 9 /7 3 u fr..." f

J////f f f material where invention as applic ira s-Tras pr. 7:1,l 1928.

OF BROOKLYN, NEW YORK.

IEILECJJBIC'v FITTING AND THE LIKE.

application med my 1s, 1921. serial No. scales.`

'My invention aims to provide certain improvements in electric fittings and the like and particularly in the mounting of sockets on a base of porcelain or non-conducting y certain econcmiesare effected in the material and labor of assembling 4the parts an'd a more secureV attachment is produced.

l The accompanyin drawings illustrate the to a screw socket for fuses.

Fig. 1 is a plan of the'assembled device; Fig. 2 is a longitudinal section thereof on the line 2-2 of Fig. 1;'

Fig, 3 is an enlargement of a portion of Fig; 2; y. l

ig. 4 is an elevation of an assembled unit used in making up the complete device. Referring to the embodiment of the invention illustrated, the porcelain 'base upon which the copper or other conducting parts are mounted, 'is indicated at 1, with a suitably shaped groove 2 across its top face, the ve bein widened at the center to carry the thread socket 3 into which the fuse 1s to be screwed. The shell of the fuse makes contact through the socket 3 with a plate 4 resting on the base 5 of the socket and having an arm 6 extending out through the side socket with a. binding screw `i" at its end. The center contact of the fuse bears on the head 8 of the screw 9 which passes down through thesocket and fastens the parts to the rcelain plate 1. A'washer 10 of noncon ucting material is inter sed-between the plate 4 and the head of t e screw so as to insulate the latter from the plate and socket. The body of the screw is threaded through a second plate 11 so as to make contact with the latter, this plate having an extension 12 with an up-turned end 13, the part 12 enga ing a separate plate 14 which carries aY bin ing screw 15; so that current is conve ed through the screw to the binding post an' the usual wire. A nonvconducting washer 16 is inter osed between the base of the socket and t e plate 11. A tubular washer 17 surrounds the portion of the screw between its head and the plate 11 for greater security against contact with the plate 4 and the base V5 of the socket.

The screw has initially a long stem which Basses down through ano ening 18 inthe porcelain at the bottom of w ich is an enlarged recess 19. The end 0f the Screw is .then upset to form a head 20 bearing firmly against vthe shoulder of the recess 19 and fas tens the parts together, The parts 12 and 14 are similarly fastened together by a rivet passing down through these parts and through a suitable hole in the rcelain upset on its end to form 8f hea., iii. the recess 22 at the bottom of the plate. The binding screws 7 and 15 are threaded into the plates 6 and 14 respectively, the to of the porcelain base being formed with oles 23 and 24 to accommodate the nds of the ScroWS.

The screw 9 may be u set on its end in various ways, preferably y the process described in Rypinski Patent No. 13293.44, January 27th, 19,20. By this method the end of the screw is softened and forced to an nrrmsxnor 'Bnooxnna Naw Yoan, saumon 'ro 'moms n. MBJMY,

close lit notwithstanding the usual irregu- In assembling weigerte a unit is ,arse Y l formed as shown in g. 4 comprising the socket and the terminal plates 6 and 12, with the necessary non-conducting washers, these parts being held fastv together by 'the screw 9 passing through the part 12. It is thenv oovel a simple matter to place this in the of the porcelain with the screw projecting below and to head up the .end of the latter; the rivet 21 being headed at the same time or in a second similarfoperat-ion. This facilitates the speedy assembling of the parts and is a valuable whether the screw be fastened by upsetting its end as described or in any other manner. The groove 2 in the porcelain block is open or unobstructed -b-y any part of the block throu hout the horizontal dimensions of the assem led unit of ,socket and attached terminals, so that .the unit after assembly can be directly placed on the bottom of the gli-ooge in position for attachment to the The part 13 is useful as a .testing contact, but is not required in all lttngs. Where this is not necessary, .the plato' '11 will extend integrally and occa y the 'position of.

feature of the invention loo 9 alone and will be fastened to the base by the sin le operation of upsetting the head 20 on sai screw.

Though I have described with great particularity of detail a1 construction embodying my invention yet itP is not to be understoodv therefrom that the invention is restricted to the particular embodiment disclosed.` Various modifications thereof in the arranment and in the details of the parte ma e made by those skilled in the art vjvit out de arturerom the invention. at 'I' claim is 1. A fitting of the class described having a socket and terminal pieces fastened thereto by a single screw. and a base of non-conductin material, said socket and terminal pieces being all mounted on top of said base and fastened thereon bythe said screw.

2. :A fitting of the class described having a'basel-'and'having avsocket and terminal pieces fastened together and all mounted on thev topof said base by the same means which fastens' them together. v

BfA unit'for use in makingittings of the class described, saidunit comprisin in comb ination a'sock'et and terminal pieces and means -for holding these 'parte together before' assembling them on a base, in combination witha base having a groove which is open throughout the horizontal dimenslons of the assembled'unit, said unit being mounted on the bottom of said groove.

4. A unitV for use in making fittings of the class described, said unit comprising in combinatlon a socket and terminal pieces and a screw for holding these parts together before assembling them on a base, in combination with a base having a groove which is v open throu hout the horizontal dimensions of the assem led unit, said unit being mounted on the bottom of said groove and fastened to the base by said screw.

5. A fitting of the class described comprising in cmbination a socket and terminal pieces and a base havinga groove which is open throughout the horizontal dimensions ofthe assembled socket and terminal pieces, said socket and terminal pieces being fas tened together and being fastened to the bottom of said groove by the same means which fastens them together.

In witness whereof, I have hereunto signed my name.

ALBERT B'. RYPINSKI. 

